How to Find the Correct Bearing Buddy
Updated 12/22/2025 | Published 09/30/2024
Products Featured in This Question
Question:
I have older Bearing Buddies on my boat trailer that I want to replace. How can I be sure that they will fit on my hubs? Do I have to remove the old Buddies to measure? If so, what measurement should I take?
asked by: Gregory L
Expert Reply:
Yes, you do! The easiest way to determine what size Bearing Buddy you need is to measure your hub bore with a digital caliper like item # PTW80157. You will want to measure the inside of the opening down to the third decimal place.
I have linked our selection of Bearing Buddies for you below once you get that measurement you'll be able to find the correct one. If you need any additionally help feel free to email me directly or comment below.
Product Page this Question was Asked From
Bearing Buddy Bearing Protectors - Model 1980A-SS w/ Auto Check - Stainless Steel (Pair)
- Trailer Bearings Races Seals Caps
- Caps
- Bearing Protector Grease Cap
- 1.99 Inch
- 2000 lbs Axle
- 2500 lbs Axle
- 3500 lbs Axle
- Bearing Buddy
more information >
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on Trailer Bearings Races Seals Caps
Jerred H.
12/22/2025
Hey, how did it go measuring the hub bore for your boat trailer’s Bearing Buddies? Once you had that number, were you able to find a set that fit correctly? Your update could make it easier for others replacing older Bearing Buddies too.